1. For most ductile materials, the stress-strain curve in compression is almost

Question

1. For most ductile materials, the stress-strain curve in compression is almost identical to that in tension. Is this statement true or false? A linear analysis of a pressure vessel with the pressure of 2000 psi yielded a safety factor of 0.5. If the pressure is changed to 500 psi, what will be the safety factor? 2. 3. In this class, you learned 2D solid elements (plane strain, plane stress, axisymmetric), 3D solid element, shell element and element 4. A node of a 3D solid element has translational degrees of freedom and rotational degrees of freedom 5. node of a 3D beam element has translational degrees of freedom and rotational degrees of freedom 6. Point load on a beam element causes singularity. Is this statemenet true or false? 7. The goal of modal analysis of a structure is to find the natural an (two words) 8. If the structure is made of aluminum, you can use the energy theory to check the possibility of (specific name of failure)

Explanation / Answer

1. True...because of identical yield strength in tension and compression.

2. Strength of vessel / pressure of the vessel = FOS

Here pressure= 2000psi and FOS = 0.5

Strength of vessel =2000* 0.5 = 1000psi

Now applied pressure = 500psi

Hence FOS = 1000/500 =2 is the correct answer.

3. It has to be solved by the concerned individual...as it requires class notes to be looked at.

4. 3 translational degree of freedom and 0 rotational degree of freedom

5. 3 translational degree of freedom and 3 rotational degree of freedom

6. Yes True.....point load on a beam causes singularity.

7. Modal frequencies and Mode shapes

8. Distortion energy theory , shear failure

Related Questions

Navigate

• Browse (All)
• Browse 1
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.